Assigning UAT Keywords to Astronomy Literature in Science Explorer Jennifer Lynn Bartlett, Felix Grezes, Kelly Lockhart & the Working Group on the UAT
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[email protected] LISA 10, 03 November 2025 This presentation is openly licensed via CC BY 4.0.
ADS for All NASA Science •Astrophysics •Planetary Science •Heliophysics •Earth Science •NASA-funded research in Biological and Physical Sciences www.scixplorer.org
What is the UAT? ●Simple Knowledge Organization System (SKOS) ontology for astronomy ○Combines and expands earlier systems, including IAU thesaurus (1993) ○Owned and freely licensed by the American Astronomical Society (AAS) ○Open, community-contributed resource ○Primarily astronomy concepts, increasing heliophysics & planetary science content ●Keyword system for ○AAS journals ○Publications of the Astronomical Society of the Pacific (PASP) ○Icarus ○International Virtual Observatory Alliance (IVOA) ○Space Telescope Science Institute (STScI) ○Strasbourg astronomical Data Center (CDS) https://astrothesaurus.org/ https://github.com/astrothesaurus/UAT
UAT Example Intergalactic medium https://astrothesaurus.org/uat/813 Broader Concepts: Extragalactic astronomy Narrower Concepts: Missing mass Quasar absorption line spectroscopy Dark matter Intergalactic clouds Intergalactic filaments Intergalactic gas Intergalactic medium phases Voids Related Concepts: Astrophysical dust processes Intracluster medium Alternate Terms: IGM Intergalactic matter Definition: The matter or environment between the galaxies of a cluster. -An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri
UAT at a Crossroads Wolbach Library closing in March 2024 eliminated part-time UAT curator ●previously supported by CfA ●SciX absorbed some technical support responsibilities ●AAS reorganized management of project ●SciX & AAS funded temporary curation contract for knowledge transfer
AAS Working Group on the UAT 5 years to initiate strategic plan for thesaurus ●Released v. 5.1 summer 2024 ●Anticipated v. 6.0 Dec. 2025, expanding heliophysics coverage ●Looking ahead 2026, further development of planetary science ●Investigating alternative curation models ●Modernizing technology infrastructure ●Seeking additional funding sources Daniel Chivvis, member Jennifer Lynn Bartlett, vice chair Nominations open! https://aas.org/comms/working-group-unified-astronomy-thesaurus-wguat
UAT for Enhanced Discoverability ●Potential to be single keyword system for space sciences regardless of media ○Consistent, controlled vocabulary for searching ○Describes literature, datasets, and software ○Relates concepts to one another in hierarchy for exploration ●Potential to connect to other ontologies for cross-disciplinary search ●SciX (ADS) has promoted UAT use since 2013 ○Goal: assign UAT keywords to all astronomy articles, including older pre-UAT articles, articles in journals that have not adopted the system, and articles whose authors are parsimonious ○Supplement, not supplant, existing keywords ○Keyword AI Labeler At Scix (KAILAS) is developmental AI algorithm
KAILAS: Keyword AI Labeler At Scix KAILAS automatically assigns UAT keywords to astronomy papers. ●KAILAS is a RoBERTa-based model trained on the full text of ~425,00 astronomy papers (3+ million tokens) in our database that have been tagged by authors/publishers with UAT keywords ●The trained model, as well as future improvements, are publicly available: huggingface.co/adsabs/KAILAS ●A version of the dataset with only titles and abstract is publicly available for academic research: huggingface.co/datasets/adsabs/SciX_UAT_keywords ●Development follows publisher agreements mount Kailas[h] from the Himalayas
KAILAS: Assessment Process Input TITLE: Ultrafast Variability in AGN Jets: Intermittency and Lighthouse Effect ABSTRACT: Gamma-ray flares from active galactic nuclei (AGNs) show substantial variability on ultrafast timescales (i.e., shorter than the light-crossing time of the AGN's supermassive black hole). We propose that ultrafast variability is a by-product of the turbulent dissipation of the jet Poynting flux. Due to the intermittency of the turbulent cascade, the dissipation is concentrated in a set of reconnecting current sheets. Electrons energized by reconnection have a strong pitch-angle anisotropy, i.e., their velocity is [...] Output KAILAS ASSIGNED KEYWORDS: blazars active galactic nuclei jets relativistic jets plasma astrophysics high energy astrophysics magnetic fields Compare AUTHOR ASSIGNED KEYWORDS: gamma-rays blazars galaxy jets V1 example
Questions? AI generated
